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Review of modeling of losses and sources of relativistic electrons in the outer radiation belt I: Radial transport

Shprits, Yuri Y.; Elkington, Scot R.; Meredith, Nigel P.; Subbotin, Dmitriy A.. 2008 Review of modeling of losses and sources of relativistic electrons in the outer radiation belt I: Radial transport. Journal of Atmospheric and Solar-Terrestrial Physics, 70 (14). 1679-1693. 10.1016/j.jastp.2008.06.014

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Abstract/Summary

In this paper, we focus on the modeling of radial transport in the Earth's outer radiation belt. A historical overview of the first observations of the radiation belts is presented, followed by a brief description of radial diffusion. We describe how resonant interactions with poloidal and toroidal components of the ULF waves can change the electron's energy and provide radial displacements. We also present radial diffusion and guiding center simulations that show the importance of radial transport in redistributing relativistic electron fluxes and also in accelerating and decelerating radiation belt electrons. We conclude by presenting guiding center simulations of the coupled particle tracing and magnetohydrodynamic (MHD) codes and by discussing the origin of relativistic electrons at geosynchronous orbit. Local acceleration and losses and 3D simulations of the dynamics of the radiation belt fluxes are discussed in the companion paper.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.jastp.2008.06.014
Programmes: BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Sun Earth Connections
ISSN: 1364-6826
NORA Subject Terms: Physics
Space Sciences
Date made live: 05 Feb 2009 12:49
URI: http://nora.nerc.ac.uk/id/eprint/5908

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